Audio Transformers / Signal Transformers

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High Power Flyback Transformers for PoE

Coilcraft High Power Flyback Transformers for Power over Ethernet (PoE) are developed for flyback PoE DC/DC PD power converters up to 51W. These transformers are designed to meet IEEE 802.3bt standards and operate at a 250kHz frequency with a 36V to 57V input voltage range. The series offers 1500V_rms, 1-minute isolation (hipot) between primary and auxiliary to secondary. Coilcraft High Power Flyback Transformers are an ideal solution for high-power PoE applications that include smart buildings and IoT.

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Image	Part #	Mfr.	Description	Datasheet	Availability	Pricing (USD) Filter the results in the table by unit price based on your quantity.	Qty.	Product	Type	Termination Style	Frequency Range	Inductance	Minimum Operating Temperature	Maximum Operating Temperature	Number of Channels	Length	Width	Height	Series	Packaging
Audio Transformers / Signal Transformers Flyback PoE 51W 26.7uH 5V 4.5A POE51Q-50ED Coilcraft 1: $6.49 16In Stock	Mfr. Part # POE51Q-50ED Mouser Part # 994-POE51Q-50ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 51W 26.7uH 5V 4.5A Learn More about Coilcraft high power poe transformers	Datasheet	16In Stock	Cut Tape $6.49 $4.90 $4.66 $4.37 Reel $4.00 View $4.17 $3.87 $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	26.7 uH	- 40 C	+ 125 C	Single	14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 12V 3.7A POE40Q-12ED Coilcraft 1: $6.49 25In Stock 2,400On Order	Mfr. Part # POE40Q-12ED Mouser Part # 994-POE40Q-12ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 12V 3.7A Learn More about Coilcraft high power poe transformers	Datasheet	25In Stock 2,400On Order On Order Ship Dates Mfr. #: POE40Q-12ED Stock: 25 Can Ship Immediately On Order: 300 Expected 10/8/2026 2,100 Expected 12/7/2026 Factory Lead-Time: 10 Weeks	Cut Tape $6.49 $4.90 $4.66 $4.37 Reel $4.00 View $4.17 $3.87 $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	27.8 uH	- 40 C	+ 125 C	Single	14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 24V 3.7A POE40Q-24ED Coilcraft 1: $6.49 113In Stock 150Expected 12/21/2026	Mfr. Part # POE40Q-24ED Mouser Part # 994-POE40Q-24ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 24V 3.7A Learn More about Coilcraft high power poe transformers	Datasheet	113In Stock 150Expected 12/21/2026	Cut Tape $6.49 $4.90 $4.66 $4.37 Reel $4.00 View $4.17 $3.87 $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	27.8 uH	- 40 C	+ 125 C	Single	14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 48V 3.7A POE40Q-48ED Coilcraft 1: $6.49 68In Stock	Mfr. Part # POE40Q-48ED Mouser Part # 994-POE40Q-48ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 40W 27.8uH 48V 3.7A Learn More about Coilcraft high power poe transformers	Datasheet	68In Stock	Cut Tape $6.49 $4.90 $4.66 $4.37 Reel $4.00 View $4.17 $3.87 $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	27.8 uH	- 40 C	+ 125 C	Single	14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 24V 4.7A POE51Q-24ED Coilcraft 1: $6.50 176In Stock	Mfr. Part # POE51Q-24ED Mouser Part # 994-POE51Q-24ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 24V 4.7A Learn More about Coilcraft high power poe transformers	Datasheet	176In Stock	Cut Tape $6.50 $4.91 $4.67 $4.38 Reel $4.00 View $4.18 $3.87 $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	22.2 uH	- 40 C	+ 125 C	Single	14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 48V 4.7A POE51Q-48ED Coilcraft 1: $6.49 1In Stock 150Expected 11/6/2026	Mfr. Part # POE51Q-48ED Mouser Part # 994-POE51Q-48ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 48V 4.7A Learn More about Coilcraft high power poe transformers	Datasheet	1In Stock 150Expected 11/6/2026	Cut Tape $6.49 $4.90 $4.66 $4.37 Reel $4.00 View $4.17 $3.87 $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	22.2 uH	- 40 C	+ 125 C	Single	14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 40W 33.3uH 5V 3.5A POE40Q-50ED Coilcraft 1: $6.49 299On Order	Mfr. Part # POE40Q-50ED Mouser Part # 994-POE40Q-50ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 40W 33.3uH 5V 3.5A Learn More about Coilcraft high power poe transformers	Datasheet	299On Order	Cut Tape $6.49 $4.90 $4.66 $4.37 Reel $4.00 View $4.17 $3.87 $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	33.3 uH	- 40 C	+ 125 C	Single	14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 12V 4.7A POE51Q-12ED Coilcraft 1: $6.49 407Expected 10/1/2026	Mfr. Part # POE51Q-12ED Mouser Part # 994-POE51Q-12ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 51W 22.2uH 12V 4.7A Learn More about Coilcraft high power poe transformers	Datasheet	407Expected 10/1/2026	Cut Tape $6.49 $4.90 $4.66 $4.37 Reel $4.00 View $4.17 $3.87 $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	22.2 uH	- 40 C	+ 125 C	Single	14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 40W 33.3uH 3.3V 3.5A POE40Q-33ED Coilcraft 1: $6.49 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # POE40Q-33ED Mouser Part # 994-POE40Q-33ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 40W 33.3uH 3.3V 3.5A Learn More about Coilcraft high power poe transformers	Datasheet	Non-Stocked Lead-Time 10 Weeks	Cut Tape $6.49 $4.90 $4.66 $4.37 Reel $4.00 View $4.17 $3.87 $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	33.3 uH	- 40 C	+ 125 C	Single	14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel
Audio Transformers / Signal Transformers Flyback PoE 51W 26.7uH 3.3V 4.5A POE51Q-33ED Coilcraft 1: $6.49 Non-Stocked Lead-Time 10 Weeks	Mfr. Part # POE51Q-33ED Mouser Part # 994-POE51Q-33ED	Coilcraft	Audio Transformers / Signal Transformers Flyback PoE 51W 26.7uH 3.3V 4.5A Learn More about Coilcraft high power poe transformers	Datasheet	Non-Stocked Lead-Time 10 Weeks	Cut Tape $6.49 $4.90 $4.66 $4.37 Reel $4.00 View $4.17 $3.87 $3.75 MouseReel Available	Min.: 1 Mult.: 1 : 150	PoE Transformers	Flyback	SMD/SMT	250 kHz	26.7 uH	- 40 C	+ 125 C	Single	14.5 mm	13 mm	14 mm	POE40Q	Reel, Cut Tape, MouseReel

High Power Flyback Transformers for PoE

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